Improvement in machines for cutting paper



@limiet Wait@ sa (ttbm-ast www HnRvEY LAW, or CHATHAM, NEW JERSEY. Letters Param No. 83,513, daad october 27, 1136s.`

IMPROVEMENT IN MACHINES" VIE'OR CUTTING lihAlEElil.n

The Schedule referred to'in these Itters Patent-and making part of the same.

To all whom it ma/y comm:

Be it known that I, HERVEY LAW, o f Chatham, in

the county of Morris, and State of New Jersey, have v invented a new and improved. Machine for Trimming Books; and I do hereby declare that Vthe following is a full, clear, and exact description thereof, which will enable those skilled in the .artto make' and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to anew and improvedl ma chine for 'trimming books,e and it consists in a peculiar cons ta'uctionlaudarrangement of parts, wherebytwo pilesiof books maybe out or trimmedat vone operation, and in a perfect manner, sothat -no finishing or retrimming with scissors or knife will be required, and the parts made to operate antomatically throughout.

In the accompanying sheet of drawings-.-v

'Figure l is a side elevation of my invention.

Figure 2, arear elevation of the'same.

Figure 3, a transverse veltical section of the same,- taken in the line a; x, iig. 2.l

Figure 4, a horizontal section of the same, taken in the line y y,iig. 3.

llitigare 5, a detached inverted plan of the clamp-bed pertaining to the same. i

' Similar'letters of reference indicate corresponding parts.

The framing of the machine is composed of two uprights, A A,co nnected at their lower parts by crossrods, c, and at their upper parts by a horizontal bar, B, to which a knife, O, is attached, and secured in any proper manner, the cutting-edge of the -knife extending down below the lower edge of the bar B, the latter being'rendered adjustable ,by any proper means, to compensate for the wear of the knife.

Each upright, A, has a vertical slot, b, made in it, andin these slots a bar, D,is fitted, andallowed to move freely, said barV having two slots, c c, inade in it,

the main portions of which are inclined, and at the l same angle, and consequentlyare parallel with each other. The lower portions of the slotsc c are horizontal, as shown clearly in fig'. 2,

Through these slots pins d d. pass, said pins extend: ing horizontally through the upright-s A A, and serving as guides-to the..bar D.

E represents a driving-shaft, which is fitted in suitable bearings, c, at the lower part ofthe framing, and

has apinion, F, at one end of it, which pinion gears into a wheel, G, on a shaft, H, which is parallel with the shaft E, the inner endy of the latter being provided with a crank, I, which is connected by a pitman, J X,

'with the bar D. (See, more particularly, iig. 3.)

By this means an upanddown oblique movement is .given the bar D, in a direction corresponding to the inclination of the slots c c, and. at the termination of i the upward oblique movement of the bar D, a sho'rt horizontal movementis given said bar, owing to the lower horizontal portions of said slots.

The object of this short horizontal movement of bar D will be presently explained. I

To the outer side of one of the uprights A, there are attached bearings for a vertical-sliding rod or shaft, E', which is operated from the bar D by means of a loop, F', attached to shaft E', and in which lopl one end of the bar D is fitted, said loop being com-` posed of an upright strip, f, having a hook, g, at its upper and lower end, as shown clearly in iig. 1, the

`hooks ggbeing sufficiently far apart to admit of a certain degree of play ofthe bar D between them, before the shaft E is actuated.

To the lowerend of the shaft E there is attached an arm, h, in which the lower end of a shaft, FX, is secured, said shaft having a number of teeth, t, at its upper end, which, when the shaft E is forced down 'by the bar D, engage with a ratchet, j, at the inner `side of a wheel, G', and turn said wheel, G', a certain J represents a bed, which projects horizontally from the bar D, and is permanently attached thereto.

In this bed, J, there is an oblong slot, m, in which a slide, K, is fitted, said slide having an elastic cord or spring, L, attached, which has .a tendency to keep the slide at the end of the slot m nearest the bar D. (See figs. 3 and 4.)

In this slide, K, there is .fitted a vertical shaft, n, having a ratchet-wheel, M, on its lower part, underneath the bed J and N is arack, which vpassestransversely through the bar D, and is pivoted to a slide, O, which is fitted and works in a proper bearing, o, underneath the bed. J, and has rack-teeth, p, at one side of it,.into which a pinion, P, gears, said pinion being at the upper end of a shaft, having its bearing, g, at the side of. bar D, the lower end of said shaft having av pinion, Q, upon it, into which a rack, It,

gears, the latter being pivotd at one end to the frami arrow l, turns the ratchet-wheel M, which is stationary when the slide and rack are moved in the opposite `in fig. 5, andon the upper surface of the fixed bed J thereare three projections, s s s", all of which are shown in fig. 4, the projections s s being straight strips or bars, parallel with each other, and bevelled at one end, ands being curved, so that'one portion `will be at right angles to Jthe other.

Besides these projections s s' s" on the fixed table, thereiis what I term a vtrip,'composed of a rigid strip, t, and a pivoted one, t', the latter having a spring, u, bearing against it, to keep its free or disengaged end thrown toward the centre of the bed, as shown in iig. 4.

The operation of the device is as followse-The driving-shaft E is operated by any convenient power, a driving-belt passing overthe pulley 1;' and when said pulley is connected with the-shaft E, by' a proper adjustment of the clutch-lever H, an up-and-down movement is given the bar D, in an oblique direction, owing to two oblique guide-slots c c and the pins d.

As the bar D movesupward, one side of a top block, e,-under the clamp T, bears against the knife C, and the latter', by an oblique cut, caused by the oblique movement of bar D, takes ofIn one side of two piles, U, of the books,'the horizontal cut of the bar D, at the termination of the oblique cut, causing the paper to beentirely cut or completely cut through, thereby obviating the necessity of any after-work, in the way of retrimming. This horizontal cut, therefore, is of ,considerable importance.

When the bar D commences to descend, the. bed S,

fand consequently the piles pf books, are moved backward from the bar D, in the direction indicated by' arrow 2, through the media of the rack R, wheels P Q, `rack N, and ratchet-wheel M, the latter not being allowed to turn, as the bed S cannot turn, the projections i' fr of said bed being between or at the inner sides of the projections S S of the fixed bed J; but when the projection fr reaches the outer end ofs, the bed S is immediately turned a quarter revolution, the projectiony fr' passing around s, which serves as a guide, and the part t of the trip arrests the' movement of the projection 'r,and prevents the bed S from turning too far, thereby causing'a quarter revolution of the bed only at. each turning-movement.

By this arrangement, a new or uncut side of the paper is presented to the knife at each upward movement` of the bar D and paper.

As soon as the bed S is turned, the rack N is thrown up free from the ratchet M, in consequence of theend ofsaid rack coming in contact with an inclined plane, a

at the under side of the bed J, and the spring L draws the bed S toward the bai- D, until the side of a block, c, is brought in contact with thev side of knife C, and a succeeding cut is e'ected.

1 would remark, that the projections s s on the bed J should be of such a length as to admit of the bed receding sufficiently far to accommodate books of the largest size. y

By this means, books of the largest and smallest size may be trimmed by the machine.

As the bar D is mov ed upward, the rack N is moved outward, so that it will be in readiness, as before, to be moved inward, to throw back and turn the bed S, at the succeed'mg downward movement of the bar D.

At the termination of each fourth movement of the bed S, each time it has completed an 'entire revolu-Z tion, and the two piles U U of paper trimmed each at three sides, themachine is stopped, in consequence of the projection k of wheel G actuating the clutclnlever H, said wheel G being turned a quarter revolution each time the bar D descends, and hence making an entire revolution with the bed S.

This automatic arrangement for stopping the Inachine prevents any unnecessary waste of time, and in dicates at once to the attendant the time for removing the cut books or paper,- and applying uncut books or paper to the bed S.

I claim as new, and desire to secure by Letters Patentl. In machines for trimming books, the turning of the bed S, on which the paper is out, by the receding f movement of the bed from the knife, after the completion of each cut, so as to present an uncut side of the pile of paper or books to the knife at each upward movement of thebed, substantially as set forth.

2. Giving the bed S, and consequently the paper to be cut, a lateral horizontal movement at they termination-0f its'npward'oblique movement, in order to effect a clean cut, substantially as shown and described.

3. The automatic mechanism,`substaritially as shown and described,` for operating Athe 'clutch-lever H, and

stopping the machine at the completion of the cutting of the''our sides oi' the paper or piles of books on bed S, as set forth.

. 4. rlhe pendent projections lr lr r r at theA under side of the bed S, in connection with 'the projections s s on the upper surface of the fixed bed J, for the purpose of holding the bed S in proper position relativelywith the knife C, when the paper is being cnt,

' and also when receding from the knife, and at the.

same time admit of the bed being turned at the proper moment, substantially as set forth.

5. The trip, on the fixed bed J, composed of the fixed part t, the pivoted part t,and the spring u, when used in connection with the projections on the beds S J', and arranged to operate in connection therewith, substantially as and for the purpose set forth.

. HERVEY LAW.

' Witnesses:

WM. F. MCNAMARA, ,ALEL F. Renners. 

